dpdk: security issues < 25.11.4, < 26.07

@stepbrobd

CVE-2026-86564 (NVD)

3.3 LOW | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): Low (L)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): None (N)
Modified Availability (MA): Low (L)

Dpdk: dpdk: missing length validation before reading command_data in virtio-net control queue handler

A flaw was found in DPDK lib/vhost. Missing length validation before reading command_data in the virtio-net control-queue handler can cause an out-of-bounds read and a host process crash.

References

https://access.redhat.com/security/cve/CVE-2026-86564 (x_refsource_REDHAT, vdb-entry)
RHBZ#2529682 (x_refsource_REDHAT, issue-tracking)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86856 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: stack and heap buffer overflow in nfp vdpa driver

A flaw was found in the DPDK nfp vDPA driver. Stack and heap buffers sized for a single queue pair can be overflowed when more virtqueues are configured, leading to a host crash or memory corruption.

References

https://access.redhat.com/security/cve/CVE-2026-86856 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529897 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86849 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: integer overflow combined with missing validation leads to host buffer overflow in vhost-crypto

A flaw was found in DPDK lib/vhost vhost-crypto. Integer overflow in chain length checks, and missing length checks on the RSA path, can overflow a host buffer in the vhost-crypto backend.

References

https://access.redhat.com/security/cve/CVE-2026-86849 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529858 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86566 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest with runt rx descriptors underflows copy length in vhost enqueue (split and packed rings)

A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vhost backend such as OVS-DPDK.

References

https://access.redhat.com/security/cve/CVE-2026-86566 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529684 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-93683 (NVD)

6.4 MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): High (H)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): Low (L)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): High (H)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): Low (L)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest-triggered out-of-bounds walk via vhost indirect descriptor length toctou

A flaw was found in the DPDK vhost library. When handling a virtio indirect descriptor table, the host reads the table length more than once from guest memory and can allocate a host copy before validating that length. A guest that changes the length between those reads, or that supplies an out-of-range next index on a small host copy in the vDPA relay path, can cause the host vhost process to walk past the validated mapping or heap copy. That can crash or disrupt the vhost process. Out-of-bounds bytes are consumed as descriptor fields for GPA translation and are not returned to the guest as payload. This is a residual issue in the non-contiguous indirect descriptor copy path introduced as part of the CVE-2018-1059 fix.

References

https://access.redhat.com/security/cve/CVE-2026-93683 (vdb-entry, x_refsource_REDHAT)
RHBZ#2537015 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86565 (NVD)

8.2 HIGH | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): High (H)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): High (H)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest can desynchronize virtqueue size from inflight descriptor table size, causing out-of-bounds write

A flaw was found in DPDK lib/vhost. A guest can desynchronize virtqueue size from inflight descriptor table size, causing an out-of-bounds write in the host vhost process.

References

https://access.redhat.com/security/cve/CVE-2026-86565 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529683 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86567 (NVD)

8.8 HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

Dpdk: dpdk: vduse handler fails to invalidate vring pointers when iotlb is invalidated, leading to use-after-unmap

A flaw was found in DPDK lib/vhost. The VDUSE handler fails to invalidate vring pointers when the IOTLB is invalidated, leading to use-after-unmap.

References

https://access.redhat.com/security/cve/CVE-2026-86567 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529685 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86561 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: missing memory size validation before mmap in vhost memory region setup

A flaw was found in DPDK lib/vhost. Memory size is not adequately validated before mmap during vhost memory-region setup, which can lead to a host crash or memory corruption.

References

https://access.redhat.com/security/cve/CVE-2026-86561 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529666 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86562 (NVD)

7.8 HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

Dpdk: dpdk: control-queue descriptor double-fetch overflows host heap in dpdk vhost (vduse)

A flaw was found in DPDK lib/vhost. A TOCTOU double-fetch of control-queue descriptors allows a heap buffer overflow with attacker-controlled content in the VDUSE control-queue handler.

References

https://access.redhat.com/security/cve/CVE-2026-86562 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529667 (issue-tracking, x_refsource_REDHAT)
https://git.dpdk.org/dpdk/commit/?id=6ec17781346e0fe4b566b6bf8f79be71f87c10e4

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86845 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest-triggered use-after-free and type confusion in vhost-crypto session cleanup

A flaw was found in DPDK lib/vhost vhost-crypto. Session cleanup can leave a stale cached session pointer, and the data path does not check the session type before attaching it, leading to use-after-free or type confusion in the host vhost-crypto backend.

References

https://access.redhat.com/security/cve/CVE-2026-86845 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529844 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86846 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest can trigger out-of-bounds write by controlling avail ring index in vhost-crypto

A flaw was found in DPDK lib/vhost vhost-crypto. A guest can supply an avail-ring descriptor index that is used without bounds checking, causing an out-of-bounds write in the host vhost-crypto backend.

References

https://access.redhat.com/security/cve/CVE-2026-86846 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529846 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86563 (NVD)

7.8 HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

Dpdk: dpdk: double offset bug in vhost log mapping calculation

A flaw was found in DPDK lib/vhost. A double-offset bug in vhost log mapping calculation can lead to incorrect memory access.

References

https://access.redhat.com/security/cve/CVE-2026-86563 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529668 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86847 (NVD)

6.5 MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

Dpdk: dpdk: guest can trigger infinite loop in vhost-crypto writeback chain cleanup

A flaw was found in DPDK lib/vhost vhost-crypto. Write-back chain cleanup can follow an uninitialized next pointer when mapping a guest descriptor fails, causing the host vhost-crypto process to hang or crash.

References

https://access.redhat.com/security/cve/CVE-2026-86847 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529847 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-86848 (NVD)

8.8 HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

Dpdk: dpdk: time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds write in vhost-crypto

A flaw was found in DPDK lib/vhost vhost-crypto. The indirect-descriptor snapshot double-fetches a guest descriptor next index, allowing a malicious guest to cause an out-of-bounds access in the host backend.

References

https://access.redhat.com/security/cve/CVE-2026-86848 (vdb-entry, x_refsource_REDHAT)
RHBZ#2529853 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

CVE-2026-100236 (NVD)

8.6 HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): Low (L)
Integrity (I): Low (L)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): Low (L)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): Low (L)
Modified Availability (MA): High (H)

Dpdk: dpdk: heap out-of-bounds read/write in gso header copy

A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write.

References

https://access.redhat.com/security/cve/CVE-2026-100236 (vdb-entry, x_refsource_REDHAT)
RHBZ#2541488 (issue-tracking, x_refsource_REDHAT)

Additional comment

https://www.openwall.com/lists/oss-security/2026/10/14/7

Affected packages

dpdk (pull requests)
- 26.03@master
- 25.07@release-26.05
- 25.07@release-25.11

Affected package maintainers

@stepbrobd, @Mic92, @zhaofengli

Next steps

Start here if this is your first security issue: Triaging and fixing security issues
Backports are usually needed: Backporting security fixes

dpdk: security issues < 25.11.4, < 26.07 #574370

Description

CVE-2026-86564 (NVD)

References

Additional comment

CVE-2026-86856 (NVD)

References

Additional comment

CVE-2026-86849 (NVD)

References

Additional comment

CVE-2026-86566 (NVD)

References

Additional comment

CVE-2026-93683 (NVD)

References

Additional comment

CVE-2026-86565 (NVD)

References

Additional comment

CVE-2026-86567 (NVD)

References

Additional comment

CVE-2026-86561 (NVD)

References

Additional comment

CVE-2026-86562 (NVD)

References

Additional comment

CVE-2026-86845 (NVD)

References

Additional comment

CVE-2026-86846 (NVD)

References

Additional comment

CVE-2026-86563 (NVD)

References

Additional comment

CVE-2026-86847 (NVD)

References

Additional comment

CVE-2026-86848 (NVD)

References

Additional comment

CVE-2026-100236 (NVD)

References

Additional comment

Affected packages

Affected package maintainers

Next steps

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